The news comes on the heels of last week's cancellation of fellow mainstay "American Chopper."

The show's most recent cycle (8/22/12-9/12/12) - a four-week run dubbed "Dirty Jobs Down Under" - averaged 1.105 million viewers and a 0.5 rating among adults 18-49. "Dirty Jobs" launched as a three-part special in November of 2003, airing 169 episodes spanning nine years.